Η συνεργασία δημόσιου - ιδιωτικού τομέα στην αξιοποίηση της δημόσιας ακίνητης περιουσίας: πολιτικές, θεσμοί, πρακτική

Αντικείμενο της διδακτορικής διατριβής είναι η καταγραφή και αξιολόγηση του θεσμικού πλαισίου της συνεργασίας του Δημοσίου με τον ιδιωτικό τομέα κατά την αξιοποίηση της δημόσιας ακίνητης περιουσίας. Συγκεκριμένα, καταγράφεται η εξέλιξη των μορφών της συνεργασίας αυτής από τις πιο παραδοσιακές στις πλέον σύγχρονες, και αναλύεται το υφιστάμενο ελληνικό θεσμικό πλαίσιο, οι διαφορετικοί ρόλοι του Δημοσίου κατά την αξιοποίηση της ακίνητης περιουσίας του και οι ιδιαιτερότητες της νομοθεσίας αυτής, ιδίως, δε, η πολεοδομική και περιβαλλοντική πτυχή της. Επιπρόσθετα, αξιολογείται το ελληνικό θεσμικό πλαίσιο συνεργασίας Δημοσίου και ιδιωτικού τομέα για την αξιοποίηση της ακίνητης περιουσίας του Δημοσίου, τα δε συμπεράσματα, δοκιμάζονται στην πράξη μέσω της μελέτης συγκεκριμένων περιπτώσεων αξιοποιήσεως. Καθώς με το οικείο θεσμικό πλαίσιο ρυθμίζονται κατά βάση οικονομικά ζητήματα για τον λόγο αυτόν, ως βασικό κριτήριο για την αξιολόγηση του θεσμικού πλαισίου της συνεργασίας του Δημοσίου με τον ιδιωτικό τομέα τίθεται η αποτελεσματικότητά του. Ειδικότερα, η διδακτορική διατριβή εξετάζει το οικείο θεσμικό πλαίσιο υπό το πρίσμα της σχέσης της οικονομικής αποτελεσματικότητας με την οικονομική δικαιοσύνη, η δε θεωρητική βάση της είναι η οικονομική ανάλυση του δικαίου.The subject of the dissertation is the analysis and evaluation of the legal framework of the Public-Private Partnerships in public real estate development. In particular, it is analyzed the evolution of the different forms of PPPs from the most traditional to the most contemporary, as well as the existing Greek legal framework, the different roles of the State in real estate management and the particularities of the legislation concerning PPPs in public real estate, especially, the urban planning and environmental rules. In addition, the Greek legal framework for PPPs in public real estate development is evaluated, and the conclusions are tested through studying specific cases of PPPs. As the relevant legal framework regulates economic issues, for this reason, its effectiveness is set as a key criterion for evaluating the legal framework of PPPs. The dissertation focuses specifically on the study of the relationship between economic efficiency and economic justice, and its theoretical basis is the economic analysis of law

Partenariats public-privé dans le développement des biens immobiliers de l'État: politique, cadre juridique et practique

The subject of the dissertation is the analysis and evaluation of the legal framework of the Public-Private Partnerships in public real estate development. In particular, it is analyzed the evolution of the different forms of PPPs from the most traditional to the most contemporary, as well as the existing Greek legal framework, the different roles of the State in real estate management and the particularities of the legislation concerning PPPs in public real estate, especially, the urban planning and environmental rules. In addition, the Greek legal framework for PPPs in public real estate development is evaluated, and the conclusions are tested through studying specific cases of PPPs. As the relevant legal framework regulates economic issues, for this reason, its effectiveness is set as a key criterion for evaluating the legal framework of PPPs. The dissertation focuses specifically on the study of the relationship between economic efficiency and economic justice, and its theoretical basis is the economic analysis of law.Αντικείμενο της διδακτορικής διατριβής είναι η καταγραφή και αξιολόγηση του θεσμικού πλαισίου της συνεργασίας του Δημοσίου με τον ιδιωτικό τομέα κατά την αξιοποίηση της δημόσιας ακίνητης περιουσίας. Συγκεκριμένα, καταγράφεται η εξέλιξη των μορφών της συνεργασίας αυτής από τις πιο παραδοσιακές στις πλέον σύγχρονες και αναλύεται το υφιστάμενο ελληνικό θεσμικό πλαίσιο, οι διαφορετικοί ρόλοι του Δημοσίου κατά την αξιοποίηση της ακίνητης περιουσίας του και οι ιδιαιτερότητες της νομοθεσίας αυτής, ιδίως, δε, η πολεοδομική και περιβαλλοντική πτυχή της. Επιπρόσθετα, αξιολογείται το ελληνικό θεσμικό πλαίσιο συνεργασίας Δημοσίου και ιδιωτικού τομέα για την αξιοποίηση της ακίνητης περιουσίας του Δημοσίου, τα δε συμπεράσματα, δοκιμάζονται στην πράξη μέσω της μελέτης συγκεκριμένων περιπτώσεων αξιοποιήσεως.Καθώς με το οικείο θεσμικό πλαίσιο ρυθμίζονται κατά βάση οικονομικά ζητήματα, για τον λόγο αυτόν, ως βασικό κριτήριο για την αξιολόγηση του θεσμικού πλαισίου της συνεργασίας του Δημοσίου με τον ιδιωτικό τομέα τίθεται η αποτελεσματικότητά του. Ειδικότερα, η διδακτορική διατριβή εξετάζει το οικείο θεσμικό πλαίσιο υπό το πρίσμα της σχέσης της οικονομικής αποτελεσματικότητας με την οικονομική δικαιοσύνη, η δε θεωρητική βάση της είναι η οικονομική ανάλυση του δικαίου

Fungal Pretreatment of Willow Sawdust with Abortiporus biennis for Anaerobic Digestion: Impact of an External Nitrogen Source

In this study the effect of nitrogen (N) supplementation in the fungal pretreatment of willow sawdust (WSD) via the white rot fungus Abortiporus biennis (A. biennis) was studied in terms of the fractionation of lignocellulosic biomass and biochemical methane potential (BMP). Thus, different external nitrogen sources (yeast extract (YE), urea (UR), and ammonium nitrate (AN)) at different ratios (N/C of 1/250 and 1/50) were added and the effect of the above parameters on the chemical composition of WSD during solid-state fermentation (SSF) experiments with A. biennis was assessed and compared to the experiment of fungal pretreatment without N supplementation (N/C was 1/500, control experiment). The results indicated that the addition of an external nitrogen source did not facilitate delignification, regardless of the type of nitrogen source and the ratio of N/C used. On the other hand, enhanced cellulose uptake was observed. Samples of the 28th day of cultivation, with and without N supplementation, were used for BMP tests, where a reduction in methane yield was observed, compared to the control experiment. In addition, a combination of fungal with alkali (20% NaOH w/w dry mass) pretreatment was performed in order to assess the effect of combined pretreatment on the lignocellulosic content and the BMP

A Proactive Environmental Approach for Preventing Legionellosis in Infants: Water Sampling and Antibiotic Resistance Monitoring, a 3-Years Survey Program

A proactive environmental monitoring program was conducted to determine the risk and prevent nosocomial waterborne infections of Legionella spp. in infants. Sink taps in a neonatal intensive care unit (NICU) and two obstetric clinics were monitored for Legionella spp. A total of 59 water samples were collected during a 3-year period and 20 of them were found colonized with Legionella pneumophila. Standard culture, molecular, and latex agglutination methods were used for the detection and identification of Legionella bacteria. Hospital personnel also proceeded with remedial actions (hyperchlorination and thermal shock treatment) in the event of colonization. The minimal inhibitory concentration (MIC) values of erythromycin, ciprofloxacin was determined for Legionella isolates using the e-test method. Our data indicate that the majority of neonatal sink-taps were colonized at least once during the study with Legionella spp. Among 20 isolates, 5 were considered as low-level resistant, 3 in erythromycin and 2 in ciprofloxacin, while no resistant strains were detected. Environmental surveillance in neonatal and obstetric units is suggested to prevent waterborne infections, and thus to reduce the risk of neonatal nosocomial infections

Basics of Sustainable Diets and Tools for Assessing Dietary Sustainability: A Primer for Researchers and Policy Actors

Climate change can have economic consequences, affecting the nutritional intake of populations and increasing food insecurity, as it negatively affects diet quality parameters. One way to mitigate these consequences is to change the way we produce and consume our food. A healthy and sustainable diet aims to promote and achieve the physical, mental, and social well-being of the populations at all life stages, while protecting and safeguarding the resources of the planet and preserving biodiversity. Over the past few years, several indexes have been developed to evaluate dietary sustainability, most of them based on the EAT-Lancet reference diet. The present review explains the problems that arise in human nutrition as a result of climate change and presents currently available diet sustainability indexes and their applications and limitations, in an effort to aid researchers and policy actors in identifying aspects that need improvement in the development of relevant indexes. Overall, great heterogeneity exists among the indicators included in the available indexes and their methodology. Furthermore, many indexes do not adequately account for the diets’ environmental impact, whereas others fall short in the economic impact domain, or the ethical aspects of sustainability. The present review reveals that the design of one environmentally friendly diet that is appropriate for all cultures, populations, patients, and geographic locations is a difficult task. For this, the development of sustainable and healthy diet recommendations that are region-specific and culturally specific, and simultaneously encompass all aspects of sustainability, is required

The Key Role of Nutritional Elements on Sport Rehabilitation and the Effects of Nutrients Intake

Adequate nutrition is of utmost importance for athletes, especially during rehabilitation after injury in order to achieve fast healing and return to sports. The aim of this narrative review is to define the proper nutritional elements for athletes to meet their needs and facilitate their fast return to sports after surgery or injury, as well as determine the effects of specific nutrients intake. Studies on antioxidants, which are substances that protect against free radicals, for the injured athlete are few and unclear, yet poly-phenols and especially flavonoids might improve healing and inflammation following an injury. Benefits of vitamin C or E on muscle damage are disputable in relevant studies, while optimal levels of vitamin D and calcium contribute to bone healing. Minerals are also essential for athletes. Other supplements suggested for muscle damage treatment and protein synthesis include leucine, creatine, and hydroxymethylbutyrate. Diets that include high-quality products, rich in micronutrients (like vitamins, minerals, etc.) bio-active compounds and other nutritional elements (like creatine) are suggested, while an individualized nutrition program prescribed by a trained dietitian is important. Further studies are needed to clarify the underlying mechanisms of these nutritional elements, especially regarding injury treatment